Enter your sex and height to see a healthy weight range rather than a single number.
Formula
Range = 18.5 × height² to 24.9 × height² (height in metres)
Worked example
At 168 cm, the healthy range is about 52.2 to 70.3 kg.
Frequently asked questions
Is there one ideal weight?
No. A range is more realistic; build, age and muscle mass all play a part.
What are the Devine and Lorentz formulas?
Older formulas still used as reference points, for example to dose some medicines.
Should I aim for the middle of the range?
Not necessarily. Talk to a doctor about what suits you.
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Results are estimates for information only. Check important figures with a professional.